Eh, Mccaskill's campaign certainly isn't behaving like it's not behind, she also has trailed in the last 7 public polls of this race
I know, but I prefer to set my expectations low and then perhaps be pleasantly surprised on election day.
I used to allow myself to get emotionally affected by the outcome of elections. While I still consider myself a Republican, I'm far less of one than I used to be (for various reasons I won't get into here). I can remember being elated on election nights in 1994, 2000, 2002, and 2004. Then I got similarly deflated in 2006 and 2008.
I found it did me a world of good to make a concerted effort to detach myself emotionally from politics and elections. I've had basically the same disposition on every election night since then -- which is probably related to my drift away from my party.